(Long Answer – Procedural Application)
Consider the function
f(x)=∣x−3∣+2,x∈R.
(a) Locate all critical points of f.
(b) Determine the sign of f′(x) for x<3 and x>3.
(c) Using your answer to part (b), state whether f has a local maximum, a local minimum or neither at each critical point.
(d) Write the intervals on which f is increasing and those on which it is decreasing.